NSF Standard

Drinking Water System Components—Health Effects, ANSI/NSF Standard 61, NSF International, Ann Arbor, Mich., 1988. 

At NSF, a great deal of work is done on the development and implementation of NSF standards and criteria for health-related equipment. The majority of NSF standards relate to water treatment and purification equipment, products for swimming pool applications, plastic pipe for potable water as well as drain, waste, and vent (DWV) uses, plumbing components for mobil homes and recreational vehicles, laboratory furniture, hospital cabinets, polyethylene refuse bags and containers, aerobic waste treatment plants, and other products related to environmental quality. 

Manufacturers of ec u ipment, materials, and products that conform to NSF standards are included in official listings, and these producers are authorized to place the NSF seal on their products. Representatives from NSF regularly visit the plants of manufacturers to make certain that products bearing the NSF seal, do fulfill applicable NSF standards. 

National Sanitation Foundation. NSF Standard 49 Advisory Committee for Biohazard Cabinetry Ann Arbor, MI, 1995. 

Table 3.7 provides a summary of the characteristics of the three types of Class II biosafety cabinets. Class II biosafety cabinets are intended for low- to-moderate-risk hazards. As a minimum, they should be required to meet the National Safety Foundation (NSF) Standard 49 for Class II (laminar flow) a biohazard cabinetry. The working enclosures and plenums through which air moves should be constructed of materials that are easy to decontaminate, such as staMess steel or a durable plastic. 

International Electrotechnical Commission. lEC 60825-1 (2007) Table of Contents (only) available at http //webstore.iec.ch/webstore/ webstore.nsf/Standards/IEC%2060825-1 openDocument (accessed January 23, 2009). American National Standards Institute. ANSI... 

Noryl PPX 7115 Designed for extrusion and offers higher heat resistance and high impact and is NSF Standard 61 listed (restrictions apply)... 

Following extensive testing and evaluation, the biocide additive has been approved for food contact by the US organization NSF International. The certification means that the additive meets the requirements of ANSI/NSF Standard 51, covering safety of plastics materials and components developed for contact with food in the USA. The NSF mark can now be featured on products containing the ingredient and in promotional literature and will also encourage manufacturers of food equipment, who already hold NSF approval, to use the additive in their products. 

Vore, R. D., Michael, J. U., Touraj, R. and Richard, L. Q., 1997. The Bacterial Efficacy of Five Commonly Utilized Swimming Pool Disinfectants/Sanitizers as Measured by NSF Standard 50-1996. abstr. Q-006, p. 456. Abstr. 97th Annu. Meet. Am. Soc. Microbiol. 1997. American Society for Microbiology, Washington, D.C. 

National Science Foundation (NSF). (2008). NSF Standard Accepts New Stainless Steel Materials in Drinking Water Applications, Available Online at ... 

Require meeting standards. Use only chemicals certified to NSF Standard 60 or equivalent for water treatment chemicals. Chemicals should also meet AWWA standards. If there are no applicable AWWA or NSF standards, require the chemical to meet an American Society for Testing and Materials (ASTM) or another chemical industry standard. Some state regulatory agencies require certified chemicals. Check with the regulating authority for this information. 

Affidavit of compliance must be furnished by supplier. Product must also be certified as meeting ANSI/NSF Standard 60. Documentation of this certification must be provided by supplier. The certifying agency (NSF, UL, CSA, or others) will be notified by the Water Department in the event any certified product arrives at the treatment facility and appears to be contaminated. 

Liquid alum sulfate (alum) shall be manufactured from aluminum hydrate (Al(OH) ) and virgin sulfuric acid in a standard digestion process. Alum manufactured from waste products of other processes shall not be accepted. The successful bidder shall submit affidavits indicating compliance with NSF Standard 60 and AWWA Standard B403 (current edition) and with the requirement regarding raw materials specified in this paragraph. The affidavit concerning raw material processes must be submitted annually. 

The NSF 49 standard requires that a test for containment of microbiological aerosols be performed for the production model cabinet of each type. If that model cabinet passes the containment test, the testing certification under the NSF standard assumes that all other identical models would also pass. However, if a variation in the cabinet s operating environment caused by one or more of the conditions listed above occurs after the cabinet is installed, the cabinet could possibly fail to provide proper containment. 

There are certain guidelines which must be followed to ensure the proper use of the Class II biological safety cabinet. Before using the cabinet, the operator should ascertain whether it has been inspected for proper operation by a qualified technician, and whether it has passed certain tests to ensure that the performance of the unit meets the minimum standards set in the NSF Standard 49 (326). This series of tests, known as a certification, minimally consists of testing the integrity of the... 

I78.3297C Colorants for polymers Kemira 460 complies with NSF Standard 14... 

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